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To be useful, that key needs to be present in countless border checkpoint or even police devices, so it's inherently very hard to keep secret. That's a known t
by lxgr 1y ago
To be useful, that key needs to be present in countless border checkpoint or even police devices, so it's inherently very hard to keep secret.
That's a known trade-off, and I believe some countries accordingly restrict access to their own national authorities (which usually already have access to that data via other means, since they're issuing the document).
- Nextgrid 1y agoYou wouldn't need the key to be copyable though - it can be an online check - ie. passport sends challenge, terminal sends challenge to government-hosted HSM, HSM sends response.
- lxgr 1y agoGood point, but that's in the end a typical availability/security tradeoff, and I could imagine that at least some verifying authorities would rather err on the side of the former.
- chrisandchris 1y agoImagine, there are a lot of borders and pösces where duch control happens where internet is not guaranteed.